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author Sam Lantinga <slouken@lokigames.com>
date Sat, 14 Jul 2001 19:08:25 +0000
parents 55f1f1b3e27d
children e5bc29de3f0a
rev   line source
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55f1f1b3e27d Added new docs for SDL 1.2.1
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parents: 0
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1 .TH "SDL_MapRGB" "3" "Sun 10 Jun 2001, 19:42" "SDL" "SDL API Reference"
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2 .SH "NAME"
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3 SDL_MapRGB\- Map a RGB color value to a pixel format\&.
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4 .SH "SYNOPSIS"
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5 .PP
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6 \fB#include "SDL\&.h"
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7 .sp
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8 \fBUint32 \fBSDL_MapRGB\fP\fR(\fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Maps the RGB color value to the specified pixel format and returns the pixel value as a 32-bit int\&.
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12 .PP
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13 If the format has a palette (8-bit) the index of the closest matching color in the palette will be returned\&.
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14 .PP
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15 If the specified pixel format has an alpha component it will be returned as all 1 bits (fully opaque)\&.
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16 .SH "RETURN VALUE"
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17 .PP
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18 A pixel value best approximating the given RGB color value for a given pixel format\&. If the pixel format bpp (color depth) is less than 32-bpp then the unused upper bits of the return value can safely be ignored (e\&.g\&., with a 16-bpp format the return value can be assigned to a \fBUint16\fP, and similarly a \fBUint8\fP for an 8-bpp format)\&.
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19 .SH "SEE ALSO"
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20 .PP
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21 \fI\fBSDL_GetRGB\fP\fR, \fI\fBSDL_GetRGBA\fP\fR, \fI\fBSDL_MapRGBA\fP\fR, \fI\fBSDL_PixelFormat\fR\fR
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55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
22 ...\" created by instant / docbook-to-man, Sun 10 Jun 2001, 19:42